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Inconel 625 Bar UNS N06625 in 5/8-14" Size for Power Generation Compliant with ASTM B446

Certification	ISO, ASTM, EN, DIN
Minimum Order Quantity	30 kg

Product Details

Model Number	625	Shape	Round
Technique	Hot Rolled	Surface Treatment	Pickling
Length	Custom Cutting Any Length	Diameter Range	6 - 350mm
Alloy Grade	UNS N06625 (Inconel 625)	Size Range	5/8" (15.875mm) To 14" (355.6mm)
Standards Compliance	ASTM B446/ASME SB 446	Finish Options	HRAP, CD, BD, CG
Tensile Strength	≥760 MPa	Yield Strength	≥345 MPa
Elongation	≥30%	Hardness	≤220 HB
Density	8.44 G/cm³
Highlight	5/8-14" Size Inconel 625 Bar , Power Generation Nickel Alloy Bar , ASTM B446 Compliant UNS N06625 Bar

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Product Description

UNS N06625 Inconel 625 Bar

5/8-14" Size, Power Generation; Complies with ASTM B446

Product Overview

Our UNS N06625 Inconel 625 Round Bar is engineered to meet the rigorous demands of power generation infrastructure, with diameters ranging from 5/8" to 14" and full compliance with ASTM B446/ASME SB 446 standards. As a solid-solution strengthened nickel-chromium-molybdenum-niobium alloy (Werkstoff No. 2.4856), it delivers unmatched performance in high-temperature, corrosive environments—making it the material of choice for critical power generation components.

Key Specifications & Compliance

Alloy Grade: UNS N06625 (Inconel 625), equivalent to JIS NCF 625 and DIN 2.4856
Size Range: 5/8" (15.875mm) to 14" (355.6mm) diameter; available in 1-6m lengths
Standards Compliance: ASTM B446/ASME SB 446 (primary), plus NACE MR0175/ISO 15156 for sour service compatibility
Finish Options: Hot Rolled Annealed & Pickled (HRAP), Cold Drawn (CD), Bright Drawn (BD), or Centreless Ground (CG)
Tolerances: H8-H13 and K9-K12 series for precision fitting

Chemical Composition (ASTM B446 Requirements)

The alloy's performance stems from its tightly controlled chemistry:

Element	Content Range (%)
Nickel (Ni)	≥58.0
Chromium (Cr)	20.0-23.0
Molybdenum (Mo)	8.0-10.0
Niobium + Tantalum (Nb+Ta)	3.15-4.15
Iron (Fe)	≤5.0
Carbon (C)	≤0.10
Manganese (Mn)	≤0.50
Phosphorus (P)	≤0.015
Sulfur (S)	≤0.015

This formulation eliminates the need for precipitation-hardening treatments while delivering exceptional strength and corrosion resistance.

Mechanical & Physical Properties

Ideal for power generation's extreme conditions, the bar exhibits:

Tensile Strength: ≥760 MPa (110,231 psi)

Yield Strength: ≥345 MPa (50,038 psi)

Elongation: ≥30% (room temperature)

Hardness: ≤220 HB

Temperature Stability: -196°C (-320.8°F) to 982°C (1,800°F)

Density: 8.44 g/cm³ (0.305 lbs/in³)

Thermal Expansion: 7.3×10 in/in/°F (20-204°C)

Notably, it maintains structural integrity under thermal cycling—critical for gas turbine and nuclear reactor components.

Power Generation Applications

Inconel 625's unique properties address key challenges in power infrastructure:

Gas Turbines: Used for turbine blades, combustion chambers, and exhaust manifolds. Its resistance to oxidation and carburization at 982°C prevents premature failure.
Nuclear Power: Deployed in reactor cores and heat exchangers, where it resists radiation-induced corrosion and maintains strength in high-pressure coolants.
Coal-Fired Plants: Ideal for boiler tubes and ash-handling systems, as it withstands sulfuric acid corrosion from flue gases.
Renewable Energy: Utilized in geothermal power pipes and offshore wind turbine drivetrains, enduring saline environments and thermal stress.

Field data shows it extends component lifespan by 30-50% compared to stainless steel in these applications.

Corrosion & Wear Resistance

A standout feature for power generation, the alloy offers:

Chloride Resistance: Immune to stress-corrosion cracking (SCC) in seawater and brine.
Acid Resistance: Withstands nitric, phosphoric, and hydrochloric acids (up to 40°C for HCl).
Pitting/Crevice Resistance: Outperforms 316L stainless steel in harsh electrolytes.

This resistance reduces maintenance costs and unplanned downtime—critical for power plant reliability.

Fabrication Flexibility

Compliant with ASTM B446, the bar supports standard manufacturing processes:

Welding: Compatible with TIG, MIG, and resistance welding; no post-weld heat treatment required.
Machining: Cold working enhances strength without compromising ductility.
Heat Treatment: Solution annealing (982-1,038°C) optimizes corrosion resistance for specific applications.

Quality Assurance

Each bar undergoes rigorous testing to meet ASTM B446:

Chemical analysis (XRF/ICP)
Mechanical testing (tensile, hardness)
Non-destructive testing (ultrasonic, eddy current)
Dimensional inspection (calipers, micrometers)

Certifications include mill test reports (MTRs) and ISO 9001:2015 compliance.

Why Choose Our Inconel 625 Bar?

For power generation, reliability is non-negotiable. Our bars deliver:

ASTM B446 compliance for regulatory approval
Size versatility (5/8"-14") for diverse component designs
Proven performance in nuclear, fossil fuel, and renewable energy
Global supply chain with just-in-time delivery

Tags:

Inconel 625 Bar UNS N06625 in 5/8-14" Size for Power Generation Compliant with ASTM B446

5/8-14" Size Inconel 625 Bar

Power Generation Nickel Alloy Bar

ASTM B446 Compliant UNS N06625 Bar